Audi A4 S4 B9 Hazard Triangle Warning Light Switch Button 8W0941509A

Audi A4 S4 B9 Hazard Triangle Warning Light Switch Button is a factory component from the Switches, control elements and ignition locks group, designed for precise control of hazard lights in Audi vehicles. This solution is designed for a specific platform, ensuring full compatibility with the electrical system and cockpit ergonomics.

Specifications and technical data

• SKU: 8W0941509A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0941509A
• Substitutable numbers: 8W0941509A, 8W0 941 509 A
• Location on the vehicle: Rear, Right
• Category: Switches & Controls

Function and application in the control system

The hazard light switch is responsible for the quick and clear activation of the warning signal in the vehicle. In Audi A4 and S4 B9 generation models, it is integrated into the control panel, providing convenient access for the driver and a clear, intuitive operating point. This component works with the factory electrical system, maintaining the original operating logic and safety parameters specified by the manufacturer.

Construction and interior integration

As a part from the Switches, control elements and ignition locks group, the hazard light button is structurally matched to the Audi dashboard, both in terms of shape and mounting method. The properly selected housing geometry and connectors allow for installation without modifying the wiring, which reduces the risk of looseness, rattling, or improper fit with other console elements.

The placement on the vehicle in the rear right part of the control system ensures that the component works with the appropriate section of the electrical harness, maintaining the correct cable routing direction and stable support within the cockpit structure.

Benefits of using an original switch

Using an original hazard light switch in the Audi A4/S4 B9 allows you to maintain the consistency of the entire lighting control system. Key advantages include:

• maintaining factory ergonomics and interior appearance,
• reliable operation within the existing electrical system,
• no need for harness adaptation or additional modifications,
• consistency with other control panel elements.

Thanks to this, when replacing a damaged component, you can restore full functionality of the hazard light system without interfering with the vehicle's structure.

Characteristics of the used component

The offered button comes from a used vehicle, which means it is a component with verified functionality, intended for further operation in the control system. This type of solution is particularly beneficial for maintenance repairs, where the priority is to maintain the original vehicle specification within a reasonable budget. A used OEM part allows you to avoid problems typical of some replacements, such as imprecise mechanism operation or differences in surface finish.

Matching within the category and additional materials

If you are planning a comprehensive repair or upgrade of the lighting control area in your Audi and need other elements from the same group, such as function buttons, light switches, or control modules, check the available parts in the Audi Switches, control elements and ignition locks category.

When working on driving safety, it is also worth paying attention to the condition of the braking system – practical tips on choosing used components can be found in the article Second-hand braking system: how to safely choose discs, calipers, and ABS?. Additionally, if you are considering a choice between a used part and a replacement, the guide 5 reasons why a used OEM part is a better choice than a replacement, which discusses practical selection criteria in terms of durability and installation, may be helpful.